107 citations · 235 across the 15 of their papers we have counts for
15 papers
First-Principles Study of High-Temperature Superconductivity in X2MH6 Compounds under 20 GPa
Jing Luo, Qun Wei, Xiaofei Jia +2
Research on high-temperature superconductors has primarily focused on hydrogen-rich compounds, however, the need for extreme pressures limits their practical applications. The X2MH…
Determination of crystal structure and physical properties of Ru2Al5 intermetallic from first-principles calculations
Jing Luo, Meiguang Zhang, Xiaofei Jia +2
Novel ordered intermetallic compounds have stimulated much interest. Ru-Al alloys are a prominent class of high-temperature structural materials, but the experimentally reported cr…
Optimal Quantum State Tomography via Weak Value
Xuanmin Zhu, Dezheng Zhang, Runping Gao +3
To improve the efficiency of the state tomography strategy via weak value, we have searched the optimal coupling strength between the system and measuring device. For an arbitrary…
Degenerate perturbation theory to quantum search
Dezheng Zhang, Xuanmin Zhu, Yuanchun Deng +3
We utilize degenerate perturbation theory to investigate continuous-time quantum search on second-order truncated simplex lattices. In this work, we show that the construction of t…
Accelerating inverse crystal structure prediction by machine learning: a case study of carbon allotropes
Wen Tong, Qun Wei, Haiyan Yan +2
Based on structure prediction method, the machine learning method is used instead of the density function theory (DFT) method to predict the material properties, thereby accelerati…
Hybrid direct state tomography by weak value
Xuanmin Zhu, Qun Wei, Lixia Liu +1
Compared with the conventional quantum state tomography (QST), the direct state tomography (DST) using weak value is easily manipulated in experiments. However, the efficiency of t…
Pressure and strain effects on the optical properties of K4 phosphorus
Qun Wei, Chenyang Zhao, Meiguang Zhang +4
An investigation of the mechanical, electronic, and optical properties of the recently reported material K4 phosphorus was made in this work. The K4 phosphorus has been proved to b…
Direct state reconstruction with coupling-deformed pointer observables
Xuanmin Zhu, Yu-Xiang Zhang, Shengjun Wu
Direct state tomography (DST) using weak measurements has received wide attention. Based on the concept of coupling-deformed pointer observables presented by Zhang \emph{et al}.[Ph…
The amplification of weak measurements under quantum noise
Xuanmin Zhu, Yu-Xiang Zhang
The influence of outside quantum noises on the amplification of weak measurements is investigated. Three typical quantum noises are discussed. The maximum values of the pointer's s…
Quantum Uncertainty and Error-Disturbance Tradeoff
Yu-Xiang Zhang, Shengjun Wu, Zeng-Bing Chen
The uncertainty principle is often interpreted by the tradeoff between the error of a measurement and the consequential disturbance to the followed ones, which originated long ago…
Modulating the electronic properties of graphdiyne nanoribbons
Zheng-Zhe Lin, Qun Wei, Xuanmin Zhu
By ab initio calculation, Au, Cu, Fe, Ni and Pt adatoms were proposed for modulating the electronic property of graphdiyne naoribbons (GDNRs). GDNRs of 1~4 nm in width were found t…
The negative probabilities and information gain in weak measurements
Xuanmin Zhu, Qun Wei, Quanhui Liu +1
We study the outcomes in a general measurement with postselection, and derive upper bounds for the pointer readings in weak measurement. Using the idea of weak measurement, we stud…
Information gain versus coupling strength in quantum measurements
Xuanmin Zhu, Yuxiang Zhang, Quanhui Liu +1
We investigate the relationship between the information gain and the interaction strength between the quantum system and the measuring device. A strategy is proposed to calculate t…
Quantum measurements with preselection and postselection
Xuanmin Zhu, Yuxiang Zhang, Shengshi Pang +3
We study quantum measurement with preselection and postselection, and derive the precise expressions of the measurement results without any restriction on the coupling strength bet…
The classicality and quantumness of a quantum ensemble
Xuanmin Zhu, Shengshi Pang, Shengjun Wu +1
In this paper, we investigate the classicality and quantumness of a quantum ensemble. We define a quantity called classicality to characterize how classical a quantum ensemble is.…